Positioning structure for tubes of an umbrella shaft

Abstract

The present invention relates to a positioning structure for tubes of an umbrella shaft, which uses a lateral connecting means connected with an upper tube of the shaft, which has particularly more than four tubes. When the upper tube is inserted into a second tube, the connecting means can connecting the upper tube with the second tube elastically.

What is claimed is:  
     
         1 . A positioning structure for tubes of an umbrella shaft having more than four tubes, wherein the upper tube is provided with a laterally groove for receiving therein with a coil spring and a ball, and when the upper tube is inserted into a second tube, the ball being engaged with an aperture on the second to connecting both elastically.  
     
     
         2 . The positioning structure for tubes of an umbrella shaft as claimed in  claim 1 , wherein a connector being connected with the upper tube laterally, and the connector having a central groove for receiving therein with a coil spring and a ball for engaging with the second tube.  
     
     
         3 . The positioning structure for tubes of an umbrella shaft as claimed in  claim 1 , wherein a sleeve being connected with the upper tube laterally, and a coil spring and two balls being received therein for engaging with the second tube in both sides.